feat(FalukantService): add numeric value conversion for money checks

- Introduced a new private method `_toNumericValue` to handle conversion of various input types to numeric values, ensuring proper validation of user money and requirement values.
- Updated `checkMoneyRequirement` method to utilize the new conversion logic, improving accuracy in money requirement checks by handling edge cases for non-finite values.

backend/services/falukantService.js

@@ -6105,8 +6105,30 @@ class FalukantService extends BaseService {
         return {};
     }
 
+    _toNumericValue(raw) {
+        if (typeof raw === 'number') {
+            return Number.isFinite(raw) ? raw : NaN;
+        }
+        if (typeof raw === 'string') {
+            const normalized = raw
+                .trim()
+                .replace(/\s/g, '')
+                .replace(/\.(?=\d{3}(?:\D|$))/g, '')
+                .replace(',', '.');
+            const parsed = Number(normalized);
+            return Number.isFinite(parsed) ? parsed : NaN;
+        }
+        const parsed = Number(raw);
+        return Number.isFinite(parsed) ? parsed : NaN;
+    }
+
     async checkMoneyRequirement(user, requirement) {
-        return user.money >= requirement.requirementValue;
+        const availableMoney = this._toNumericValue(user?.money);
+        const requiredMoney = this._toNumericValue(requirement?.requirementValue);
+        if (!Number.isFinite(availableMoney) || !Number.isFinite(requiredMoney)) {
+            return false;
+        }
+        return availableMoney >= requiredMoney;
     }
 
     async checkBranchesRequirement(hashedUserId, requirement) {